EP 0097232 A2 19840104 - Process for the preparation of 4-(trialkylammonium)-aceto-acetarylides.
Title (en)
Process for the preparation of 4-(trialkylammonium)-aceto-acetarylides.
Title (de)
Verfahren zur Herstellung von 4-(Trialkylammonium)-acetoacetaryliden.
Title (fr)
Procédé de préparation de 4-(trialkylammonium)-acéto-acétarylides.
Publication
Application
Priority
CH 376982 A 19820618
Abstract (en)
[origin: US4552983A] Process for the production of 4-(trialkylammonium)-acetoacetarylides having the formula: <IMAGE> wherein: R is H, a lower alkyl, -OCH3, -OC2H5, -Cl, -Br, -NO2, -NHCOCH3 or an anilated heterocyclic ring; n is 1 to 3; R1, R2 and R3 each is an alkyl having 1 to 18 C atoms; and X is Cl or Br. Such arylide is prepared by reacting a corresponding trialkylamine with a corresponding 4-haloacetoacetarylide at a low temperature in the presence of an organic solvent.
Abstract (de)
4-(Trialkylammonium)-acetoacetarylide aus Trialkylamin und 4-Halogenacetessigarylid.
IPC 1-7
IPC 8 full level
C07C 231/00 (2006.01); C07C 67/00 (2006.01); C07C 231/12 (2006.01); C07C 237/04 (2006.01); C09B 44/02 (2006.01)
CPC (source: EP US)
C09B 44/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0097232 A2 19840104; EP 0097232 A3 19841219; EP 0097232 B1 19861015; AT E22881 T1 19861115; CH 649282 A5 19850515; DE 3366915 D1 19861120; DK 267683 A 19831219; DK 267683 D0 19830610; JP S597145 A 19840114; US 4552983 A 19851112; US 4558158 A 19851210
DOCDB simple family (application)
EP 83104127 A 19830427; AT 83104127 T 19830427; CH 376982 A 19820618; DE 3366915 T 19830427; DK 267683 A 19830610; JP 10759983 A 19830614; US 50189883 A 19830607; US 65248484 A 19840920